NES 2.0 Mapper 396: Difference between revisions

From NESdev Wiki
Jump to navigationJump to search
Line 16: Line 16:


==Inner Bank Register ($C000-$FFFF)==
==Inner Bank Register ($C000-$FFFF)==
  Mask: unkonwn, probably $C000
  Mask: $C000
   
   
  D~7654 3210
  D~7654 3210
Line 22: Line 22:
   .... .PPP
   .... .PPP
         +++- PRG A16..A14 if CPU A14=0
         +++- PRG A16..A14 if CPU A14=0
Unknown if bus conflicts occur here.
 
No bus conflicts.

Revision as of 18:49, 10 November 2021

NES 2.0 Mapper 396 denotes the 晶太 YY850437C multicart PCB, basically an UNROM mapper with an outer bank register.

  • 1995 Super 8-in-1 (JY-050 rev0)
  • Super 8-in-1 Gold Card Series (JY-085)
  • Super 8-in-1 Gold Card Series (JY-086)

Outer Bank Register ($8000-$BFFF)

Mask: $C000

D~7654 3210
  ---------
  .M.. .ppp
   |    +++- PRG A19..A17
   +-------- 0: Vertical mirroring
             1: Horizontal mirroring

No bus conflicts.

Inner Bank Register ($C000-$FFFF)

Mask: $C000

D~7654 3210
  ---------
  .... .PPP
        +++- PRG A16..A14 if CPU A14=0

No bus conflicts.